/*
 * File      : usbdevice.c
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2012, RT-Thread Development Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Change Logs:
 * Date           Author       Notes
 * 2012-10-02     Yi Qiu       first version
 */

#include <rtthread.h>
#include <rtdevice.h>
#include <rtservice.h>

#ifdef RT_USING_USB_DEVICE

#define USB_DEVICE_CONTROLLER_NAME      "usbd"

#ifdef RT_USB_DEVICE_COMPOSITE
const static char* ustring[] = {
	"Language",
	"RT-Thread Team.",
	"RTT Composite Device",
	"320219198301",
	"Configuration",
	"Interface",
};
#endif

#ifdef RT_USB_DEVICE_COMPOSITE
static struct udevice_descriptor compsit_desc = {
	USB_DESC_LENGTH_DEVICE,     //bLength;
	USB_DESC_TYPE_DEVICE,       //type;
	USB_BCD_VERSION,            //bcdUSB;
	USB_CLASS_MISC,             //bDeviceClass;
	0x02,                       //bDeviceSubClass;
	0x01,                       //bDeviceProtocol;
	0x40,                       //bMaxPacketSize0;
	_VENDOR_ID,                 //idVendor;
	_PRODUCT_ID,                //idProduct;
	USB_BCD_DEVICE,             //bcdDevice;
	USB_STRING_MANU_INDEX,      //iManufacturer;
	USB_STRING_PRODUCT_INDEX,   //iProduct;
	USB_STRING_SERIAL_INDEX,    //iSerialNumber;
	USB_DYNAMIC,                //bNumConfigurations;
};
#endif

rt_err_t rt_usb_device_init(void)
{
	rt_device_t udc;
	udevice_t udevice;
	uconfig_t cfg;
	ufunction_t func;

	/* create and startup usb device thread */
	rt_usbd_core_init();

	/* create a device object */
	udevice = rt_usbd_device_new();

	udc = rt_device_find(USB_DEVICE_CONTROLLER_NAME);

	if(udc == RT_NULL) {
		rt_kprintf("can't find usb device controller %s\n", USB_DEVICE_CONTROLLER_NAME);
		return -RT_ERROR;
	}

	/* set usb controller driver to the device */
	rt_usbd_device_set_controller(udevice, (udcd_t)udc);

	/* create a configuration object */
	cfg = rt_usbd_config_new();

#ifdef RT_USB_DEVICE_MSTORAGE
	/* create a mass storage function object */
	func = rt_usbd_function_mstorage_create(udevice);

	/* add the function to the configuration */
	rt_usbd_config_add_function(cfg, func);
#endif

#ifdef RT_USB_DEVICE_CDC
	/* create a cdc function object */
	func = rt_usbd_function_cdc_create(udevice);

	/* add the function to the configuration */
	rt_usbd_config_add_function(cfg, func);
#endif

#ifdef RT_USB_DEVICE_RNDIS
	/* create a rndis function object */
	func = rt_usbd_function_rndis_create(udevice);

	/* add the function to the configuration */
	rt_usbd_config_add_function(cfg, func);
#endif

	/* set device descriptor to the device */
#ifdef RT_USB_DEVICE_COMPOSITE
	rt_usbd_device_set_descriptor(udevice, &compsit_desc);
	rt_usbd_device_set_string(udevice, ustring);
#else
	rt_usbd_device_set_descriptor(udevice, func->dev_desc);
#endif

	/* add the configuration to the device */
	rt_usbd_device_add_config(udevice, cfg);

	/* initialize usb device controller */
	rt_device_init(udc);

	/* set default configuration to 1 */
	rt_usbd_set_config(udevice, 1);

	return RT_EOK;
}

#endif
